Expandable Reservoir Ablative Fluid Delivery for Gastrointestinal Tissue
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Solution Overview
Problem
Current treatments for chronic diseases like diabetes often require major surgery or long-term implants, which are invasive and costly, and there is a need for minimally invasive, therapeutically effective procedures that target the pathologic basis of the disease.
Innovation Solution
A system comprising an elongate shaft with an expandable reservoir and a fluid delivery assembly that delivers a fixed amount of ablative fluid to treat gastrointestinal tissue, providing thermal energy to or from the tissue to achieve therapeutic benefits while maintaining minimal invasiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If major surgery is performed to treat chronic diseases like diabetes, then therapeutic effectiveness is improved, but patient morbidity and healthcare costs increase
Solution Approach 1:
The patent extracts and removes the need for major surgical intervention by delivering ablative fluid directly to target tissue through a catheter-based system. The therapeutic effect is achieved by extracting heat from tissue (cryoablation) or delivering controlled thermal energy, eliminating the need for invasive surgical procedures while maintaining therapeutic effectiveness.
Solution Approach 2:
The patent replaces mechanical surgical intervention with a fluid-based thermal delivery system. Instead of physically cutting or removing tissue through surgery, the system uses ablative fluid delivery to achieve tissue modification through controlled thermal effects, thereby reducing patient morbidity while maintaining treatment efficacy.
2Duration of action of stationary object
If long-term implants are used to treat chronic diseases, then continuous therapeutic effect is improved, but device complexity and healthcare costs increase
Solution Approach 1:
The patent employs periodic action by delivering ablative fluid in controlled cycles rather than requiring continuous implantation. The system can deliver treatment sessions periodically to achieve cumulative therapeutic effects, eliminating the need for long-term implants while maintaining continuous therapeutic benefit through repeated controlled exposures.
Solution Approach 2:
The patent applies the discarding principle by using a disposable or temporary catheter system that delivers the required ablative fluid and is then removed, rather than requiring permanent implantation. This approach reduces device complexity while achieving the necessary duration of therapeutic effect through controlled, time-limited treatment sessions.
3Power
If ablative fluid is delivered to expandable reservoir, then thermal energy delivery to tissue is improved, but risk of uncontrolled energy delivery increases
Solution Approach 1:
The patent implements feedback control by monitoring the expansion of the reservoir and the delivery of ablative fluid, allowing real-time adjustment of fluid delivery rates and reservoir pressure. This feedback mechanism ensures that thermal energy is delivered at controlled levels to the target tissue, preventing uncontrolled energy delivery while maintaining effective treatment power.
Solution Approach 2:
The patent applies dynamics by making the reservoir expandable and adjustable during the treatment process. The reservoir can be inflated to the desired volume to achieve optimal tissue contact, and the ablative fluid delivery can be dynamically adjusted based on real-time conditions, thereby controlling thermal energy delivery while maintaining effective treatment power.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system allows for safe and effective treatment of gastrointestinal tissue with minimal invasiveness, reducing healthcare costs and providing therapeutic benefits by delivering thermal energy directly to the target tissue.
Implementation Method 1
the expandable reservoir is constructed and arranged to receive a first fixed amount of ablative fluid and to deliver a first thermal dose of energy to a first portion of target tissue
Data Source
AI summary
A system for treating a patient comprises an elongate shaft, an expandable reservoir and a fluid delivery assembly. The elongate shaft comprises a distal portion and is constructed and arranged to be introduced into a gastrointestinal lumen. The expandable reservoir is positioned on the elongate shaft distal portion and is constructed and arranged to receive a first fixed amount of ablative fluid and to deliver a first thermal dose of energy to a first portion of target tissue. The fluid delivery assembly is in fluid communication with the expandable reservoir and is constructed and arranged to deliver the first fixed amount of ablative fluid to the expandable reservoir. Devices and methods for treating tissue of a patient are also provided.